I hope everyone is doing well. I will try to include a couple of photos of my work on the metal parts I've completed so far. I used a little different orientation for the stator bracket. When I rotate the whole thing on the stand it seems pretty hard to move. There must be tremendous force from the wind to have it rotate without a bearing! I think I will put a bearing between the rotating parts.
My problem right now is the size of the coil. As you can see from the pic my coil is too large for the available space. I used 3 strands of #15 and 45 turns. I also rechecked the dimensions of the spacer and pin spacing on my coil winder. My pins were a little far apart(about 1/16-). The spacer(3/8") was correct though. I even checked to make sure the layout and the wire was really 15awg but still the coil comes out too large. Can I safely decrease the inside dimensions of the coil winder pins or increase the thickness of the coil by using a slightly thicker spacer if I have to. Would I still be able to keep the stator thickness at 5/8"? Or should I just try to wind a little tighter? Could it be that I just need to be better at winding the coils? Would the slightly oversize pin spacing make that great a change in overall width of the finished coil? I used what seemed to me anyway considerable tension in the winding process. I don't really know how much wiggle room there is in this area. Any ideas or constructive suggestions would be GREATLY appreciated. After I get the coils wound then I can start on the rotors.
PS: This is Forcefields 20' design ,48V stator,20 n42 3x1.5x.75 Neo magnets with 15 coils in star config. |
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